The extreme cold blizzard doomsday arrives. Heroine Wang Xiaoyi stockpiles goods and remodels a constant-temperature safe house in advance, holding a freshness-preserving storage system. Her cousin chooses the energy-consuming heating superpower, relying on others but getting abandoned due to excessive consumption. The heroine steadily reserves supplies, plants fruits and vegetables, and sticks to her original intention without entangling with selfish people. Post-disaster rescue teams arrive; prepared for danger in times of safety and taking precautions, she gets through the crisis gracefully, interpreting that independence and sobriety can protect oneself.